1. Chapter 3
Test Prep Game

2. A projectile’s path through space is called its:
Projection
Trajectory
Orbital Path
Curve

3. A projectile’s path through space is called its:
Projection
Trajectory
Orbital Path
Curve

4. A tennis ball is dropped while another tennis ball is thrown horizontally at the same time and same height. Which of the following statements is true?
The dropped tennis ball hits the ground first.
The thrown tennis ball hits the ground first.
Both tennis balls hit the ground at the same time.
The results will vary with different types of objects.

5. A tennis ball is dropped while another tennis ball is thrown horizontally at the same time and same height. Which of the following statements is true?
The dropped tennis ball hits the ground first.
The thrown tennis ball hits the ground first.
Both tennis balls hit the ground at the same time.
The results will vary with different types of objects.

6. What is the overall displacement after the following motion: 2 m N, 16 m E, 14 m S, 2 m W?

7. What is the overall displacement after the following motion: 2 m N, 16 m E, 14 m S, 2 m W?

8. Vectors that are perpendicular can be added using the:
Difference of Two Squares
Ratio of their lengths
Double Angle Theorem
Pythagorean Theorem

9. Vectors that are perpendicular can be added using the:
Difference of Two Squares
Ratio of their lengths
Double Angle Theorem
Pythagorean Theorem

10. In the following diagram, the vertical component of the vector can be calculated using:
15sin35 c) -15sin35
15cos35 d) -15cos35
15N
35

11. In the following diagram, the vertical component of the vector can be calculated using:
15sin35 c) -15sin35
15cos35 d) -15cos35
15N
35

12. What is the resultant displacement of the following motion?
13.0 m c) 8.60 m
7.07 m d) 17.0 m

13. What is the resultant displacement of the following motion?
13.0 m c) 8.60 m
7.07 m d) 17.0 m

14. What is the direction (angle) of the following motion?

15. What is the direction (angle) of the following motion?

16. In which direction is the acceleration for an object dropped from a cliff?
forward
backward
downward
upward

17. In which direction is the acceleration for an object dropped from a cliff?
forward
backward
downward
upward

18. What happens to the vertical velocity as a projectile rises in it’s path?
increases
decreases
stays the same
changes direction

19. What happens to the vertical velocity as a projectile rises in it’s path?
increases
decreases
stays the same
changes direction

20. What happens to the horizontal velocity as a projectile rises in it’s path?
increases
decreases
stays the same
changes direction

21. What happens to the horizontal velocity as a projectile rises in it’s path?
increases
decreases
stays the same
changes direction

22. A soccer ball is kicked horizontally at 16
A soccer ball is kicked horizontally at 16.9 m/s off the top of a field house and lands 33.8 metes from the base of the field house. Determine the time of flight.
0.5 sec
2.0 sec
1.0 sec
2.5 sec

23. A soccer ball is kicked horizontally at 16
A soccer ball is kicked horizontally at 16.9 m/s off the top of a field house and lands 33.8 metes from the base of the field house. Determine the time of flight.
0.5 sec
2.0 sec
1.0 sec
2.5 sec

24. How tall was the field house in the previous question?
19.6 m
9.80 m
25.0 m
10.0 m

25. How tall was the field house in the previous question?
19.6 m
9.80 m
25.0 m
10.0 m

26. What is the shape of the trajectory for projectile motion?
a vertical line
a horizontal line
a parabola
an ellipse

27. What is the shape of the trajectory for projectile motion?
a vertical line
a horizontal line
a parabola
an ellipse

28. Select the true statement about time for projectile motion:
time up = time down
time up > time down
time up < time down
the relationship between time up and time down depends upon the initial velocity

29. Select the true statement about time for projectile motion:
time up = time down
time up > time down
time up < time down
the relationship between time up and time down depends upon the initial velocity

30. If the initial horizontal velocity for a projectile is 15 m/s and the initial vertical velocity is 10 m/s, what is the horizontal velocity at the top of the trajectory?
10 m/s
0 m/s
15 m/s
25 m/s

31. If the initial horizontal velocity for a projectile is 15 m/s and the initial vertical velocity is 10 m/s, what is the horizontal velocity at the top of the trajectory?
10 m/s
0 m/s
15 m/s
25 m/s

32. What is the vertical velocity at the top of the trajectory for the previous question?
10 m/s
0 m/s
15 m/s
25 m/s

33. What is the vertical velocity at the top of the trajectory for the previous question?
10 m/s
0 m/s
15 m/s
25 m/s d

34. A vector has a magnitude of 5 m/s and a direction of 330
A vector has a magnitude of 5 m/s and a direction of 330. What are the x- and y-components?
x = -2.5 m/s, y = 4.33 m/s
x = 2.5 m/s, y = m/s
x = m/s, y = 2.5 m/s
x = 4.33 m/s, y = -2.5 m/s

35. A vector has a magnitude of 5 m/s and a direction of 330
A vector has a magnitude of 5 m/s and a direction of 330. What are the x- and y-components?
x = -2.5 m/s, y = 4.33 m/s
x = 2.5 m/s, y = m/s
x = m/s, y = 2.5 m/s
x = 4.33 m/s, y = -2.5 m/s d

36. What is the resultant of 100 N at 90 and 100 N at 270?

37. What is the resultant of 100 N at 90 and 100 N at 270?

38. How do you subtract two vectors?
Change the sign of the second vector
Change the sign of the first vector
Add 180 to the subtracted vector and add the vectors
Add 180 to the subtracted vector and subtract the vectors

39. How do you subtract two vectors? Change the sign of the second vector
Change the sign of the first vector
Add 180 to the subtracted vector and add the vectors
Add 180 to the subtracted vector and subtract the vectors d

40. When you add two displacement vectors, the result is:
Velocity
Acceleration
Time
Displacement

41. When you add two displacement vectors, the result is: Velocity
Acceleration
Time
Displacement d

42. Vector A points North and Vector B points East
Vector A points North and Vector B points East. If C = B – A, which direction is C?
Southeast
Northeast
Northwest
Southwest

43. Vector A points North and Vector B points East
Vector A points North and Vector B points East. If C = B – A, which direction is C?
Southeast
Northeast
Northwest
Southwest

44. A helicopter is flying horizontally at 40. 0 m/s at an altitude of 100
A helicopter is flying horizontally at m/s at an altitude of 100. m. If a wheel falls off the helicopter, with what speed will it hit the ground?
2.50 m/s
40.0 m/s
44.2 m/s
98.1 m/s

45. A helicopter is flying horizontally at 40. 0 m/s at an altitude of 100
A helicopter is flying horizontally at m/s at an altitude of 100. m. If a wheel falls off the helicopter, with what speed will it hit the ground?
2.50 m/s
40.0 m/s
44.2 m/s
98.1 m/s

46. Which angle will yield the farthest range for a projectile?
90
45
30
60

47. Which angle will yield the farthest range for a projectile?
90
45
30
60

48. Which of the following is not an example of projectile motion?
A punted football
Water in a drinking fountain
A car driving down the street
A cannon being fired

49. Which of the following is not an example of projectile motion?
A punted football
Water in a drinking fountain
A car driving down the street
A cannon being fired d

50. What is the x-component of 20 m/s to the North?

51. What is the x-component of 20 m/s to the North? 20 m/s 10 m/s 40 m/s d

52. A football is kicked with an initial velocity of 25 m/s at 45
A football is kicked with an initial velocity of 25 m/s at 45. What distance does it travel?
63.7 m
25.6 m
50.0 m
100 m

53. A football is kicked with an initial velocity of 25 m/s at 45
A football is kicked with an initial velocity of 25 m/s at 45. What distance does it travel?
63.7 m
25.6 m
50.0 m
100 m

54. What is the maximum height for the football in the previous question?

55. What is the maximum height for the football in the previous question?

56. A force of 45. 0 N directed upward and a force of 60
A force of 45.0 N directed upward and a force of 60.0 N directed to the right act simultaneously on an object. What is the magnitude of the resultant force?
75 N
52.5 N
105 N
120 N

57. A force of 45. 0 N directed upward and a force of 60
A force of 45.0 N directed upward and a force of 60.0 N directed to the right act simultaneously on an object. What is the magnitude of the resultant force?
75 N
52.5 N
105 N
120 N d

58. A reindeer trudges 310 m 45 East of South
A reindeer trudges 310 m 45 East of South. How far south does the reindeer travel?
310 m
155 m
438 m
219 m

59. A reindeer trudges 310 m 45 East of South
A reindeer trudges 310 m 45 East of South. How far south does the reindeer travel?
310 m
155 m
438 m
219 m

60. Velocity measurements depend on the __________ the observer.
mass of
origin of
frame of reference of
Force of gravity acting on

61. Velocity measurements depend on the __________ the observer.
mass of
origin of
frame of reference of
Force of gravity acting on